/* Personal Knowledge Playground additions.
   Keep these rules isolated from the site's older theme overrides. */

:root {
  --zdd-playground-line: var(--zdd-surface-border, rgba(94, 159, 199, 0.42));
  --zdd-playground-ink: var(--zdd-surface-ink, #183746);
  --zdd-playground-muted: var(--zdd-surface-muted, #4a6a78);
  --zdd-playground-panel: var(--zdd-surface, rgba(247, 252, 255, 0.96));
  --zdd-playground-accent: #2e7491;
  --zdd-playground-error: #b34545;
}

body[data-md-color-scheme="slate"] {
  --zdd-playground-accent: #77bdd8;
  --zdd-playground-error: #f09999;
}

body.lab-layout .md-content {
  background: transparent !important;
}

body.lab-layout .md-content__inner {
  max-width: 56rem;
  margin-inline: auto;
}

.zdd-lab-intro {
  max-width: 42rem;
  margin: -0.35rem 0 2.4rem;
  color: var(--zdd-playground-muted);
  font-size: 1.02rem;
}

.zdd-lab-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--zdd-playground-line);
}

.md-typeset a.zdd-lab-item {
  display: grid;
  gap: 0.5rem;
  padding: 1.25rem 0.15rem;
  color: var(--zdd-playground-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--zdd-playground-line);
  transition: padding-left 160ms ease, background-color 160ms ease;
}

.md-typeset a.zdd-lab-item:hover,
.md-typeset a.zdd-lab-item:focus-visible {
  padding-left: 0.55rem;
  background: color-mix(in srgb, var(--zdd-playground-panel) 58%, transparent);
}

.zdd-lab-item-heading,
.zdd-lab-item-meta,
.zdd-lab-tags,
.zdd-lab-actions,
.zdd-control-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.zdd-lab-item-heading {
  justify-content: space-between;
  gap: 0.75rem;
}

.zdd-lab-item-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.zdd-lab-item-description {
  max-width: 44rem;
  color: var(--zdd-playground-muted);
}

.zdd-lab-item-meta {
  justify-content: space-between;
  gap: 0.8rem;
  color: var(--zdd-playground-muted);
  font-size: 0.72rem;
}

.zdd-lab-tags {
  gap: 0.35rem;
}

.zdd-lab-tag,
.zdd-lab-status {
  display: inline-flex;
  align-items: center;
  min-height: 1.35rem;
  padding: 0.05rem 0.38rem;
  border: 1px solid var(--zdd-playground-line);
  border-radius: 999px;
  font-size: 0.65rem;
  line-height: 1.2;
}

.zdd-lab-status[data-status="experimental"] {
  border-style: dashed;
}

.zdd-lab-tool {
  margin: 1.6rem 0;
  padding: 1.15rem 0;
  color: var(--zdd-playground-ink);
  border-block: 1px solid var(--zdd-playground-line);
}

.zdd-lab-tool-grid {
  display: grid;
  grid-template-columns: minmax(15rem, 0.9fr) minmax(18rem, 1.1fr);
  gap: 1.25rem;
}

.zdd-lab-field {
  display: grid;
  gap: 0.45rem;
  margin: 0;
}

.zdd-lab-field > span,
.zdd-lab-field > label,
.zdd-lab-field-label {
  color: var(--zdd-playground-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.zdd-lab-field textarea,
.zdd-lab-field input[type="text"],
.zdd-lab-field input[type="number"],
.zdd-lab-field select {
  width: 100%;
  box-sizing: border-box;
  color: var(--zdd-playground-ink);
  background: var(--zdd-playground-panel);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
  font: 0.86rem/1.55 var(--md-code-font-family, monospace);
}

.zdd-lab-field textarea {
  min-height: 10.5rem;
  padding: 0.8rem;
  resize: vertical;
}

.zdd-lab-field input[type="text"],
.zdd-lab-field input[type="number"],
.zdd-lab-field select {
  min-height: 2.35rem;
  padding: 0.4rem 0.6rem;
}

.zdd-lab-field textarea:focus-visible,
.zdd-lab-field input:focus-visible,
.zdd-lab-field select:focus-visible,
.zdd-lab-button:focus-visible,
.zdd-lab-example:focus-visible,
.zdd-life-canvas:focus-visible {
  outline: 0.16rem solid var(--zdd-playground-accent);
  outline-offset: 0.12rem;
}

.zdd-lab-actions,
.zdd-control-row {
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.zdd-lab-button,
.zdd-lab-example {
  min-height: 2.05rem;
  padding: 0.34rem 0.68rem;
  color: var(--zdd-playground-ink);
  background: transparent;
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
  font: inherit;
  font-size: 0.74rem;
  cursor: pointer;
  transition: color 150ms ease, background-color 150ms ease, border-color 150ms ease;
}

.zdd-lab-button:hover,
.zdd-lab-example:hover,
.zdd-lab-button[aria-pressed="true"] {
  color: var(--zdd-playground-panel);
  background: var(--zdd-playground-accent);
  border-color: var(--zdd-playground-accent);
}

.zdd-lab-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}

.zdd-lab-output {
  min-height: 13rem;
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 1rem;
  background: color-mix(in srgb, var(--zdd-playground-panel) 74%, transparent);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
}

.zdd-lab-output .MathJax {
  max-width: 100%;
}

.zdd-lab-status-line {
  min-height: 1.35rem;
  margin: 0.55rem 0 0;
  color: var(--zdd-playground-muted);
  font-size: 0.72rem;
}

.zdd-lab-status-line[data-state="error"] {
  color: var(--zdd-playground-error);
}

.zdd-plot-stage,
.zdd-life-stage {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--zdd-playground-panel);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
}

.zdd-plot-stage canvas,
.zdd-life-stage canvas {
  display: block;
  width: 100%;
  height: auto;
  touch-action: manipulation;
}

.zdd-plot-readout,
.zdd-life-readout {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.5rem;
  color: var(--zdd-playground-muted);
  font-size: 0.7rem;
}

.zdd-range-field {
  display: grid;
  grid-template-columns: auto minmax(7rem, 1fr) auto;
  align-items: center;
  gap: 0.55rem;
  flex: 1 1 14rem;
  color: var(--zdd-playground-muted);
  font-size: 0.74rem;
}

.zdd-range-field input[type="range"] {
  width: 100%;
  accent-color: var(--zdd-playground-accent);
}

.zdd-life-canvas {
  cursor: crosshair;
}

/* Commutative Diagram Lab */
.zdd-diagram {
  --zdd-diagram-cell-height: 5.2rem;
  margin: 1.6rem 0;
  color: var(--zdd-playground-ink);
  border-block: 1px solid var(--zdd-playground-line);
}

.zdd-diagram-toolbar,
.zdd-diagram-section-heading,
.zdd-diagram-toolbar-actions,
.zdd-diagram-code-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.zdd-diagram-toolbar {
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--zdd-playground-line);
}

.zdd-diagram-toolbar-actions,
.zdd-diagram-code-actions {
  gap: 0.42rem;
}

.zdd-diagram-example-picker {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--zdd-playground-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.zdd-diagram-example-picker select,
.zdd-diagram-inspector input,
.zdd-diagram-inspector select {
  min-height: 2.15rem;
  box-sizing: border-box;
  padding: 0.32rem 0.5rem;
  color: var(--zdd-playground-ink);
  background: var(--zdd-playground-panel);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
  font: inherit;
  font-size: 0.76rem;
}

.zdd-diagram-example-picker select:focus-visible,
.zdd-diagram-inspector input:focus-visible,
.zdd-diagram-inspector select:focus-visible,
.zdd-diagram-node:focus-visible,
.zdd-diagram-node-input:focus-visible {
  outline: 0.14rem solid var(--zdd-playground-accent);
  outline-offset: 0.12rem;
}

.zdd-diagram-workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(12rem, 14rem);
  min-height: 31rem;
}

.zdd-diagram-canvas-panel,
.zdd-diagram-inspector,
.zdd-diagram-code-panel {
  padding: 0.85rem;
}

.zdd-diagram-inspector {
  border-left: 1px solid var(--zdd-playground-line);
}

.zdd-diagram-section-heading {
  justify-content: space-between;
  gap: 0.65rem;
  min-height: 2rem;
  margin-bottom: 0.65rem;
}

.md-typeset .zdd-diagram-section-heading h2,
.md-typeset .zdd-diagram-edge-list-wrap h3 {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.zdd-diagram-section-heading > span,
.zdd-diagram-hint,
.zdd-diagram-import-note,
.zdd-diagram-empty {
  color: var(--zdd-playground-muted);
  font-size: 0.7rem;
}

.zdd-diagram-stage {
  position: relative;
  width: 100%;
  max-height: 36rem;
  overflow: auto;
  background-color: color-mix(in srgb, var(--zdd-playground-panel) 82%, transparent);
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--zdd-playground-line) 38%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--zdd-playground-line) 38%, transparent) 1px, transparent 1px);
  background-size: 1.3rem 1.3rem;
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
}

.zdd-diagram-surface {
  position: relative;
  min-width: 100%;
}

.zdd-diagram-grid {
  display: grid;
  grid-template-columns: repeat(var(--zdd-diagram-cols), minmax(5.8rem, 1fr));
  grid-template-rows: repeat(var(--zdd-diagram-rows), var(--zdd-diagram-cell-height));
}

.zdd-diagram-cell {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
}

.zdd-diagram-cell-add {
  width: calc(100% - 0.4rem);
  height: calc(100% - 0.4rem);
  padding: 0;
  color: transparent;
  background: transparent;
  border: 0;
  border-radius: 0.2rem;
  cursor: crosshair;
}

.zdd-diagram-cell-add:hover,
.zdd-diagram-cell-add:focus-visible {
  color: var(--zdd-playground-muted);
  background: color-mix(in srgb, var(--zdd-playground-accent) 7%, transparent);
  outline: 1px dashed var(--zdd-playground-line);
  outline-offset: -0.45rem;
}

.zdd-diagram-node {
  position: relative;
  z-index: 4;
  display: grid;
  place-items: center;
  min-width: 2.5rem;
  max-width: calc(100% - 1.15rem);
  min-height: 2.1rem;
  padding: 0.3rem 0.5rem;
  color: var(--zdd-playground-ink);
  background: var(--zdd-playground-panel);
  border: 1px solid transparent;
  border-radius: 0.2rem;
  font: inherit;
  cursor: pointer;
}

.zdd-diagram-node:hover {
  border-color: var(--zdd-playground-line);
}

.zdd-diagram-node[aria-pressed="true"] {
  border-color: var(--zdd-playground-accent);
  outline: 1px solid var(--zdd-playground-accent);
  outline-offset: 0.15rem;
}

.zdd-diagram-node[data-connecting="true"] {
  border-style: dashed;
}

.zdd-diagram-node .arithmatex,
.zdd-diagram-node mjx-container {
  max-width: 100%;
  margin: 0 !important;
  overflow: hidden;
  text-overflow: ellipsis;
}

.zdd-diagram-node-input {
  position: relative;
  z-index: 5;
  width: calc(100% - 0.8rem);
  min-height: 2.15rem;
  box-sizing: border-box;
  padding: 0.3rem 0.45rem;
  color: var(--zdd-playground-ink);
  background: var(--zdd-playground-panel);
  border: 1px solid var(--zdd-playground-accent);
  border-radius: 0.2rem;
  font: 0.78rem/1.4 var(--md-code-font-family, monospace);
}

.zdd-diagram-handle {
  position: absolute;
  z-index: 6;
  display: grid;
  place-items: center;
  width: 1.35rem;
  height: 1.35rem;
  padding: 0;
  color: var(--zdd-playground-accent);
  background: var(--zdd-playground-panel);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 50%;
  font: 700 0.68rem/1 sans-serif;
  cursor: pointer;
}

.zdd-diagram-handle[data-direction="u"] { top: 0.12rem; left: calc(50% - 0.675rem); }
.zdd-diagram-handle[data-direction="d"] { bottom: 0.12rem; left: calc(50% - 0.675rem); }
.zdd-diagram-handle[data-direction="l"] { left: 0.12rem; top: calc(50% - 0.675rem); }
.zdd-diagram-handle[data-direction="r"] { right: 0.12rem; top: calc(50% - 0.675rem); }

.zdd-diagram-handle:hover,
.zdd-diagram-handle:focus-visible {
  color: var(--zdd-playground-panel);
  background: var(--zdd-playground-accent);
  border-color: var(--zdd-playground-accent);
  outline: 0.12rem solid var(--zdd-playground-accent);
  outline-offset: 0.1rem;
}

.zdd-diagram-svg {
  position: absolute;
  z-index: 3;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.zdd-diagram-edge {
  color: var(--zdd-playground-ink);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.45;
  vector-effect: non-scaling-stroke;
}

.zdd-diagram-edge[data-style="dashed"] {
  stroke-dasharray: 5 4;
}

.zdd-diagram-edge[data-style="equal"] {
  stroke-width: 4.5;
}

.zdd-diagram-edge-equal-gap {
  fill: none;
  stroke: var(--zdd-playground-panel);
  stroke-width: 1.7;
  vector-effect: non-scaling-stroke;
}

.zdd-diagram-edge-hit {
  fill: none;
  stroke: transparent;
  stroke-width: 13;
  pointer-events: stroke;
  cursor: pointer;
}

.zdd-diagram-edge-hit:focus-visible {
  stroke: color-mix(in srgb, var(--zdd-playground-accent) 25%, transparent);
  outline: none;
}

.zdd-diagram-edge-group[data-selected="true"] .zdd-diagram-edge {
  color: var(--zdd-playground-accent);
  stroke-width: 2.4;
}

.zdd-diagram-edge-label {
  fill: var(--zdd-playground-ink);
  stroke: var(--zdd-playground-panel);
  stroke-width: 3px;
  paint-order: stroke fill;
  font: 0.72rem var(--md-code-font-family, monospace);
  pointer-events: none;
}

.zdd-diagram-hint {
  margin: 0.55rem 0 0;
}

.zdd-diagram-inspector-fields {
  display: grid;
  gap: 0.7rem;
}

.zdd-diagram-inspector-field {
  display: grid;
  gap: 0.28rem;
  margin: 0;
  color: var(--zdd-playground-muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.zdd-diagram-inspector-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.42rem;
  margin-top: 0.8rem;
}

.zdd-diagram-inspector-actions .zdd-lab-button {
  width: 100%;
}

.zdd-diagram-edge-list-wrap {
  margin-top: 1rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--zdd-playground-line);
}

.zdd-diagram-edge-list-wrap h3 {
  margin-bottom: 0.5rem !important;
}

.zdd-diagram-edge-list {
  display: grid;
  gap: 0.3rem;
}

.zdd-diagram-edge-list button {
  width: 100%;
  padding: 0.36rem 0.45rem;
  overflow: hidden;
  color: var(--zdd-playground-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 0.2rem;
  font: 0.68rem/1.35 var(--md-code-font-family, monospace);
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.zdd-diagram-edge-list button:hover,
.zdd-diagram-edge-list button:focus-visible,
.zdd-diagram-edge-list button[aria-pressed="true"] {
  color: var(--zdd-playground-ink);
  border-color: var(--zdd-playground-line);
  outline: none;
}

.zdd-diagram-code-panel {
  border-top: 1px solid var(--zdd-playground-line);
}

.zdd-diagram-code {
  max-height: 18rem;
  margin: 0;
  overflow: auto;
  padding: 0.85rem;
  color: var(--zdd-playground-ink);
  background: color-mix(in srgb, var(--zdd-playground-panel) 82%, transparent);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
  font-size: 0.74rem;
  white-space: pre;
}

.zdd-diagram-import {
  width: min(38rem, calc(100vw - 2rem));
  box-sizing: border-box;
  padding: 1rem;
  color: var(--zdd-playground-ink);
  background: var(--zdd-playground-panel);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.3rem;
}

.zdd-diagram-import::backdrop {
  background: rgba(10, 25, 34, 0.45);
}

.zdd-diagram-import form {
  margin: 0;
}

.zdd-diagram-import textarea {
  min-height: 13rem;
}

.zdd-diagram-import-note {
  margin: 0.6rem 0 0;
}

.zdd-diagram-close {
  width: 2rem;
  height: 2rem;
  padding: 0;
  color: var(--zdd-playground-muted);
  background: transparent;
  border: 0;
  font: 1.2rem/1 sans-serif;
  cursor: pointer;
}

.zdd-diagram-close:hover,
.zdd-diagram-close:focus-visible {
  color: var(--zdd-playground-ink);
  outline: 1px solid var(--zdd-playground-line);
}

/* Reusable interactive-article frame. Widget modules provide only controls
   and visualization logic; spacing, focus, reset, and status stay shared. */
.zdd-interactive-frame {
  margin: 1.75rem 0;
  padding: 1rem 0;
  color: var(--zdd-playground-ink);
  border-block: 1px solid var(--zdd-playground-line);
}

.zdd-interactive-header {
  margin-bottom: 0.9rem;
}

.md-typeset .zdd-interactive-title {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.md-typeset .zdd-interactive-description {
  margin: 0;
  color: var(--zdd-playground-muted);
  font-size: 0.8rem;
}

.zdd-interactive-controls {
  margin-bottom: 0.85rem;
}

.zdd-interactive-control-row,
.zdd-interactive-slider,
.zdd-interactive-legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.zdd-interactive-control-row {
  gap: 0.7rem;
}

.zdd-interactive-slider {
  display: grid;
  grid-template-columns: auto minmax(8rem, 1fr) 2.2rem;
  flex: 1 1 18rem;
  gap: 0.65rem;
}

.zdd-interactive-control-label,
.zdd-interactive-control-value {
  color: var(--zdd-playground-muted);
  font-size: 0.74rem;
}

.zdd-interactive-slider input {
  width: 100%;
  accent-color: var(--zdd-playground-accent);
}

.zdd-interactive-reset {
  min-height: 2.05rem;
  padding: 0.34rem 0.68rem;
  color: var(--zdd-playground-ink);
  background: transparent;
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
  font: inherit;
  font-size: 0.74rem;
  cursor: pointer;
}

.zdd-interactive-reset:hover,
.zdd-interactive-reset:focus-visible {
  color: var(--zdd-playground-panel);
  background: var(--zdd-playground-accent);
  border-color: var(--zdd-playground-accent);
}

.zdd-interactive-reset:focus-visible,
.zdd-interactive-slider input:focus-visible {
  outline: 0.16rem solid var(--zdd-playground-accent);
  outline-offset: 0.12rem;
}

.zdd-interactive-visualization {
  min-width: 0;
  overflow: hidden;
  background: color-mix(in srgb, var(--zdd-playground-panel) 76%, transparent);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.25rem;
}

.zdd-interactive-canvas {
  display: block;
  width: 100%;
  height: auto;
}

.zdd-interactive-legend {
  justify-content: flex-end;
  gap: 1rem;
  padding: 0.5rem 0.7rem 0;
  color: var(--zdd-playground-muted);
  font-size: 0.68rem;
}

.zdd-interactive-legend span::before {
  content: "";
  display: inline-block;
  width: 1.25rem;
  margin-right: 0.35rem;
  vertical-align: 0.2rem;
  border-top: 2px solid var(--zdd-playground-accent);
}

.zdd-interactive-legend .is-target::before {
  border-color: #b56b6b;
  border-top-style: dashed;
}

.md-typeset .zdd-interactive-status {
  min-height: 1.2rem;
  margin: 0.55rem 0 0;
  color: var(--zdd-playground-muted);
  font-size: 0.7rem;
}

.zdd-interactive-status[data-state="error"],
.zdd-interactive-error {
  color: var(--zdd-playground-error);
}

/* Internal article previews are fixed overlays, so showing one never changes
   article layout or intercepts the original link click. */
.zdd-knowledge-preview[hidden] {
  display: none;
}

.zdd-knowledge-preview {
  position: fixed;
  z-index: 25;
  width: min(21rem, calc(100vw - 1.5rem));
  box-sizing: border-box;
  padding: 0.85rem 0.95rem;
  color: var(--zdd-playground-ink);
  background: var(--zdd-playground-panel);
  border: 1px solid var(--zdd-playground-line);
  border-radius: 0.3rem;
  box-shadow: 0 10px 28px rgba(18, 70, 104, 0.14);
  opacity: 0;
  transform: translateY(3px);
  transition: opacity 160ms ease, transform 160ms ease;
}

body[data-md-color-scheme="slate"] .zdd-knowledge-preview {
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.32);
}

.zdd-knowledge-preview.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.zdd-knowledge-preview-title {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--zdd-playground-ink);
  font-size: 0.86rem;
  line-height: 1.35;
}

.zdd-knowledge-preview-description {
  display: -webkit-box;
  overflow: hidden;
  margin: 0;
  color: var(--zdd-playground-muted);
  font-size: 0.73rem;
  line-height: 1.5;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
}

.zdd-knowledge-preview-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.55rem;
  margin-top: 0.6rem;
  color: var(--zdd-playground-muted);
  font-size: 0.64rem;
}

.zdd-knowledge-preview-open {
  display: inline-block;
  margin-top: 0.65rem;
  color: var(--zdd-playground-accent) !important;
  font-size: 0.7rem;
  font-weight: 700;
  text-decoration: none;
}

.zdd-knowledge-preview-open::after {
  content: " →";
}

.zdd-knowledge-preview-open:focus-visible {
  outline: 0.14rem solid var(--zdd-playground-accent);
  outline-offset: 0.16rem;
}

.zdd-command-group + .zdd-command-group {
  margin-top: 0.65rem;
  padding-top: 0.45rem;
  border-top: 1px solid var(--zdd-playground-line);
}

.zdd-command-group-title {
  padding: 0.3rem 0.65rem 0.2rem;
  color: var(--zdd-playground-muted);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media screen and (max-width: 48em) {
  .zdd-lab-tool-grid {
    grid-template-columns: 1fr;
  }

  .zdd-diagram-workbench {
    grid-template-columns: 1fr;
  }

  .zdd-diagram-inspector {
    border-top: 1px solid var(--zdd-playground-line);
    border-left: 0;
  }

  .zdd-lab-output {
    min-height: 10rem;
  }

  .zdd-header-nav [data-zdd-nav="tags"],
  .zdd-header-nav [data-zdd-nav="friends"] {
    display: none;
  }
}

@media screen and (max-width: 30em) {
  body.lab-layout .md-content__inner {
    padding-inline: 0.8rem;
  }

  .zdd-lab-item-heading,
  .zdd-lab-item-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .zdd-plot-readout,
  .zdd-life-readout {
    flex-direction: column;
    gap: 0.15rem;
  }

  .zdd-diagram-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .zdd-diagram-toolbar-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .zdd-diagram-toolbar-actions .zdd-lab-button {
    width: 100%;
  }

  .zdd-interactive-slider {
    grid-template-columns: 1fr auto;
  }

  .zdd-interactive-slider input {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .md-typeset a.zdd-lab-item,
  .zdd-lab-button,
  .zdd-lab-example,
  .zdd-diagram-node,
  .zdd-diagram-handle,
  .zdd-interactive-reset {
    transition: none;
  }

  .zdd-knowledge-preview {
    transform: none;
    transition: none;
  }
}